Identification of vibrational signatures from short chains of interlinked molecule–nanoparticle junctions obtained by inelastic electron tunnelling spectroscopy

• DOI: 10.1039/c3nr00505d
• Publication Date: 2013-04-08T09:30:38Z
• Authors: S. H. M. Jafri; H. Löfås; J. Fransson; T. Blom; A. Grigoriev; A. Wallner; R. Ahuja; H. Ottosson; K. Leifer
• Keywords: Identification

Short chains containing a series of metal–molecule–nanoparticle nanojunctions are nano-material system with the potential to give electrical signatures close those from single molecule experiments while enabling us build portable devices on chip. Inelastic electron tunnelling spectroscopy (IETS) measurements provide one most characteristic signals and few molecules. In interlinked molecule–nanoparticle (NP) typically 5–7 molecules in chain, spectrum is expected be superposition vibrational individual We have established stable reproducible molecule–AuNP multi-junction by placing 1,8-octanedithiol (ODT) onto versatile nanoparticle–nanoelectrode platform measured for first time molecular at complex coupled few-molecule–NP junctions. From quantum transport calculations, we model IETS spectra identify modes as well number contributing spectra.